Explain a method used to determine if noncondensables are in a refrigeration system
What will be an ideal response?
The method used is as follows:
Determine the type of refrigerant in the system.
Electrically disable the compressor and allow the condenser fan to operate. Attach a temperature probe to both the discharge line and liquid line. Place a third temperature probe to measure the temperature of the air entering the condenser.
Connect a pressure gauge on the system to measure the pressure of the refrigerant in the condenser.
When all three temperature probes
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The Spanish Franciscan missionaries treated the Indian inhabitants of California
A. according to the strict moral principles of their founder St. Francis. B. fairly respectfully with the exception of refusing to convert them to Christianity because of their "heathen status." C. extremely harshly, as Indian inhabitants of California were required to toil endlessly as poor farmers and herders and often came down with serious, deadly diseases. D. much better than they treated their African slaves. E. as cultural and intellectual equals.
What is the load for 40 non-dwelling unit receptacles? (Assume that the load is not continuous.)
a. 5,400VA b. 6,750VA c. 7,000VA d. 7,200VA
What is the cleanest burning fuel used today?
What will be an ideal response?
Which of the following is not used to remove a race?
A. Hammer B. Puller C. Punch D. Screwdriver